287. All letters patent, orders in council, orders, proclamations, regulations, by-laws, resolutions or ordinances in force on 31 December 1988 and issued or made under any provision replaced or repealed by this Act remain in force until the date they cease to have effect as provided, until their objects are attained or until they are replaced or repealed by this Act. Where that is the case, they are deemed to have been issued or adopted under the corresponding provision of this Act.